| 摘要 |
Disclosed is a method of processing the color signals of a high definition television (HDTV) comprising the steps of 3-dimensionally sampling a given band of image signals into M bands (M is decimation of a positive integer) vertically, horizontally and temporally, further sampling the 3-dimensionally sampled images divided into 4 bands, vertically and horizontally separating DC signals from the lowest frequency regions of the 4 bands, the DC signals being digitally transmitted, transmitting the analog signals of the 4 bands together with the digital data, interpolating the digital data, vertically and horizontally interpolating the interpolated digital data and the analog signals, and 3-dimensionally reinterpolating the output of the sixth step in the vertical, horizontal and time axes to expand.
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